From the top of Megacity S1-9, the Sovereign Khan rules with fists of iron and flesh. Beneath the city s rotting foundations , a vengeful warrior embarks on a journey to murder him . 5 years prior to the events of Slave Zero, Slave Zero X brings new life to a world where horrific, living machines known as Slaves are primed to become the latest tools of war in humanitys long and bloody history. A secret band of warriors known as The Guardians hope to stop these biomecha from being unleashed upon the world, but one swordsman among their ranks has a different idea: use the enemys own weapon against them. By merging with a stolen Slave Unit Prototype, Shou will become a furious Devil in pursuit of killing a false God. Slave Zero X : Calamity Edition includes : - The Standard Edition physical game - All the contents included in the Standard Edition ( Guidebook , Control Card , and exclusive skin ) - An Exclusive Artbook titled “ Visuals of Megacity S1 - 9 ” which also includes a comic ( in English ) - 3 stunning art cards - 2 CDs with the Original Sound Tracks of Slave Zero X as well as the original Slave Zero game ! - All contents packaged in a collectible tuck - in box